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ナビゲーションビューで選択した場所によって異なるフラグメントを表示するプロジェクトを行っています。問題は、それが示す必要がある断片を決して示していないということです。ナビゲーション項目で、タブレイアウトのフラグメントが表示されない
ナビゲーションビューのビューはactivity_mainと呼ばれ、そこからフラグメントマネージャーが使用するレイアウトであるcontent_mainに到達できます。
問題は、2つのタブがmainactivity
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<include
layout="@layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<android.support.design.widget.NavigationView
android:id="@+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:headerLayout="@layout/nav_header_main"
app:menu="@menu/activity_main_drawer" />
</android.support.v4.widget.DrawerLayout>
app_bar_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="com.blindsiot.carlos.blindsiot.MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="@style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<include layout="@layout/content_main" />
</android.support.design.widget.CoordinatorLayout>
content_mainのツールバーに統合されていないということです.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/content_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context="com.blindsiot.carlos.blindsiot.MainActivity"
tools:showIn="@layout/app_bar_main">
</RelativeLayout>
MainActivity.java
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
navigationView.setCheckedItem(R.id.nav_principal);
/* (. . .) */
@Override
public boolean onNavigationItemSelected(MenuItem item) {
int id = item.getItemId();
Fragment currFragment = null;
FragmentManager fragmentManager = getSupportFragmentManager();
if (id == R.id.nav_principal) {
currFragment = new FastAccessFragment();
} else if (id == R.id.nav_planning) {
currFragment = new SignUp();
} else if (id == R.id.nav_settings) {
} else if (id == R.id.nav_help) {
} else if (id == R.id.nav_logout) {
editor.putBoolean("signedUp", false);
editor.apply();
Intent intent = new Intent(this, LoginActivity.class);
if (intent != null) {
this.finish();
startActivity(intent);
}
} else if (id == R.id.nav_about) {
}
if (currFragment != null) {
fragmentManager
.beginTransaction()
.replace(R.id.content_main, currFragment)
.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN)
.commit();
}
setTitle(item.getTitle());
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
FastAccessFragment.java - これは私が実際に午前どこで、私はそれが動作しない理由を理解していないところである
public class FastAccessFragment extends Fragment {
private ViewPager viewPager;
View rootview;
TabLayout tabLayout;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
rootview = inflater.inflate(R.layout.fast_access_fragment, container, false);
tabLayout = (TabLayout) rootview.findViewById(R.id.tabLayout_fragment);
tabLayout.addTab(tabLayout.newTab().setText(getString(R.string.action_sign_in_short)).setIcon(R.drawable.tab_login));
tabLayout.addTab(tabLayout.newTab().setText(getString(R.string.action_sign_up_short)).setIcon(R.drawable.tab_user));
tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
viewPager = (ViewPager) rootview.findViewById(R.id.pager_fragment);
PagerAdapter pagerAdapter = new PagerAdapter(getChildFragmentManager(), tabLayout.getTabCount());
viewPager.setAdapter(pagerAdapter);
viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
tabLayout.post(new Runnable() {
@Override
public void run() {
tabLayout.setupWithViewPager(viewPager);
tabLayout.getTabAt(0).setText("test");
tabLayout.getTabAt(1).setText("test2");
}
});
//Adding onTabSelectedListener to swipe views
tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {
}
@Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
return rootview;
}
public class PagerAdapter extends FragmentStatePagerAdapter {
int mNumOfTabs;
public PagerAdapter(FragmentManager fm, int NumOfTabs) {
super(fm);
this.mNumOfTabs = NumOfTabs;
}
@Override
public Fragment getItem(int position) {
switch (position) {
case 0:
SignUp tab1 = new SignUp();
return tab1;
case 1:
SignIn tab2 = new SignIn();
return tab2;
default:
return null;
}
}
@Override
public int getCount() {
return mNumOfTabs;
}
}
}
あなたはもう少しbehaivourを説明することができます..... – shalini